Roadrogue

My new C7 is supposed to have the factory performance exhaust. How can I verify that when I pick it up since I've not seen one before. Sorry for the newb question.

seel2000

Going through the different drive modes will change the exhaust tone.

Glen e

Non perf exhaust

Perf exhaust

sl33p3r15

Two ways...
From the outside: look at the tailpipe at the rear end, just behind the outside 2 tips, you should see a couple valves hanging on the sides, and if you look inside the pipe, you will see a baffle that will open and close (pretty easy to see)

From the inside: with the car running, go in to the settings and you have an option to change the Engine Sound Management settings
1.press the house button under the infotainment screen
2.select settings
3. select drive mode
--You will see an engine sound management option if you have the NPP option

Enjoy the new car. You will love it.

runutzzzzz

Like others said, the easiest way is to look in the tips.

Why don't you ask the dealership for your window sticker?

Also if it's a 15' Z51 then it's standard.

Thrill6

Check the window sticker!!!

C7Joy

The outside pipes will have butterfly plates just up inside them. They are open with the car off and closed running in tour mode.

Indy-hp

The easy way is like Glen shows, the tips are an inch bigger in diameter on the performance exhaust and completely fill the space. If you take your tape measure, they are 4" compared to 3".

Corgidog1

Easiest way visually-- the 2 inside pipes have a larger space between them.

Roadrogue

Thanks, guys.

NTMD8R

Apart from the tips being spaced differently,
and the NPP tips being larger in diameter,
and the NPP tips having the NPP valves in the outer tips.....

Are the mufflers different (in size/dimensions) ?